| 
                 
                    Closing price on 10/30/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.90 | 
                 
                
                    | High | 
                    3.90 | 
                 
                
                    | Low | 
                    3.80 | 
                     
                
                    | Volume | 
                    64,740 | 
                                 
                
                    | Split-adjusted Price | 
                    1.39 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/30/2012
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.39
             |                                 
            
                64,740
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.39
             |                                 
            
                351,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2012
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.39
             |                                 
            
                212,720
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                121,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                174,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                163,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                343,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2012
             | 
            
                -0.10 / -2.44%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                386,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2012
             | 
            
                -0.10 / -2.38%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.47
             |                                 
            
                269,030
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.50
             |                                 
            
                484,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2012
             | 
            
                +0.20 / +5.00%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.50
             |                                 
            
                345,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2012
             | 
            
                -0.10 / -2.44%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                422,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2012
             | 
            
                -0.20 / -4.65%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.47
             |                                 
            
                717,950
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2012
             | 
            
                +0.10 / +2.38%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                1.54
             |                                 
            
                405,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2012
             | 
            
                +0.20 / +5.00%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.50
             |                                 
            
                439,760
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2012
             | 
            
                +0.10 / +2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                513,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/8/2012
             | 
            
                +0.10 / +2.63%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.39
             |                                 
            
                293,350
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2012
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                1.36
             |                                 
            
                353,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2012
             | 
            
                -0.20 / -5.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                1.36
             |                                 
            
                727,640
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2012
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                303,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/2/2012
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.39
             |                                 
            
                265,250
             |            
            
                 
             |                                       
         
    
        
            | 
                10/1/2012
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                1.39
             |                                 
            
                262,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                119,010
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2012
             | 
            
                -0.10 / -2.44%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                105,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.47
             |                                 
            
                144,720
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2012
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.47
             |                                 
            
                88,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/24/2012
             | 
            
                -0.10 / -2.38%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                1.47
             |                                 
            
                119,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2012
             | 
            
                +0.20 / +5.00%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.50
             |                                 
            
                84,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2012
             | 
            
                -0.20 / -4.76%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                1.43
             |                                 
            
                239,480
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2012
             | 
            
                +0.10 / +2.44%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                1.50
             |                                 
            
                227,380
             |  
            
                 
             |                                                              
             
    
         
    
    
 |